Improved fire-annihilator



UNITED STATES HENRY BARAGWANATH AND MARTIN VAN WISKER, CF .NE\V YORK, N. Y y

PATENT UEEICE.

IMPROVED FIRE-ANNIHILATOR.

Specilication forming part of Letters Patent No. 5H ,284, dated December 5, 1885.

To all whom it may concern: v

Be itk'nown that we, HENRY BARAewANA'rn and MARTIN VAN WISKER, both of the city, county, and State of New York, have invented a new and Improved Means of Extinguishing Fires; and we do hereby declare the following to be a full, clear, and exact description thereot', reference being had to the accompanying drawings, forming a part of this specification, and in which- Figure 1 is an elevation, and Fig. 2 a central vertical section, ofthe apparatus employed in our invention.

The nature of our invention consists, tirst, in the discharge of water impregnated with carbonio-acid gas upon any burning mass; and, second, in applying the pressure of the generation ot' the gaseous water to its discharge at the will of the operator.

Our apparatus for producing and discharging a-t pleasure a supply ot' aerated water con- Sists of a stron g metallic vessel, A, into which is inserted a long metallic tube, B. This tube B' is inserted through a contracted mouth or opening in the top ot' the vessel A, encircled by a ange or neck, ac. The inner upper edge of the neckar is rabbeted, so as to form a shoulder, upon which is placed a packing-ring, c, otl leather, india-rubber, or other suitable material, to receive a rim projecting from the upper edge ofthe tube B, said tube being supported 'by this rim when inserted in the vessel. The mouth of the vessel is closed by a metallic cap or Stopper, (l, which screws over it, so as to make an air-tight joint therewith, and which is provided with a washer of rubber or other suitable paekin g material, so that when screwed down it shall press firmly upon the upper edge or rim ot' the inner tube, and making a watertightjoint therewith. The tube B is of such a length as to reach nearly to the bottom of the vessel, and is provided with a water-tight valve, d, at its lower end. This valve is kept closed byapowerfulspring,- butmay beopened at pleasure by means ofA a rod, D, screwing down through the cap G and extending to the valve d. The head of the rod projects somewhat above the top ot the cap U when the valve is closed, and byv simply screwing it home the valve will be opened. We contemplate ulso securing the valve-rod directly to the cap, so that by screwing down the cap the rod willact upon the valve. A discharge-aperture, titted with a tube and closed by a stopcock or valve, A', is formed in the-lower part of the vessel A, and to this discharge-tube is connected a flexible tube and nozzle suitable for directing and delivering in any direction thejet of aerated Huid discharged from the apparatus.

In charging the apparatus constructed substantially as described the cock A is carefully closed and the tube B withdrawn from the vessel A. This vessel A is then nearly lled with water, acidulated by thev addition of about one pound of tartaric acid, or its equivalent, to every two gallons of water, and the tube B with about one pound ot dry bicarbonate of soda, pulverized or crystallized, (or any other alkaline equivalent,) t'or every two gallons of water placed in the vessel. The tube, with its bottom valve tightlyclosed, is then replaced by being inserted through the neck ot the vessel unt-il its rim nds resting place upon the shoulder formed therein, and the apparatus is hermetically sealed by screwing down the cap or stopper C to its place, the screw valve-rod therein being lirst elevated, so as not to reach the valve d in the bottom ot' the tube. Thejoint between the upper part ofthe vessel and the top of the tube is made watertight by the pressure of the stopper() against the packing-rings b and c on either side of the rim ot' the tube, so that the fluid in the vessel cannot possibly reach the contents ofthe tube in whatever position it may be thrown.

The apparatus is made readyi'or immediate use by simply screwing down the valve-rodl) by means of its projecting head. This will force open the valve cl and allow the bicarbonate of soda (or other equivalent alkaline substance) to drop into and mingle with theacidulated water in the vessel A, thereby generating instantaneously a volume of carbonicacid gas in the water, which will, however, rcmain confined within the vessel until the cock A is opened, when the expansion of' the gases will force out the aerated water in avery powerful jet, which, with a proper nozzle, may be thrown against a burning mass or object to a distance of from twenty to forty feet. This water thus impregnated with carbonio-acid gas will immediately extinguish ilaine and pre vent combustion not onlywhere it strikes, but also for a considerable distance around it.

We do not limit ourselves in oui` invention to the within-described means of obtaining and discharging aerated Water against or upon burning objects, but contemplate any equivalent forms of apparatus for accomplishing the obiect, substantially as set forth.

Having thus fully described our invention, we claim as new and desire to secure by Letters Patent Subduing and extinguishing re by means of aerated water produced and applied' substantiaiiy in the manner and lfor the purpose herein set forth. l

The foregoing specification of our improved means of extinguishing tires signed by us l[his 16th day of September, A. D. 1865.

HENRY BARAGWANATH. MARTIN VAN WISKER. In presence of- CHAs. Il. CARR, C. G. SPENGLER. 

